Embedding mulitpe levels of SVG-images

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1

I try to embed multiple levels (iteration) of SVG with each other. The result is that the nodes get smaller and smaller, even though they have the same font and it works when using i.e. PNG. How to make it work with SVG? The problem is: I want the meta-data that SVG embed.

The Python code returns the name of the last SVG

def create_children ( node, dir ):
    G = Graph ( layout="dot" )
    G.add_node ( str ( node ), label=text_to_html ( nodes [ node ][ "text" ] ), **nodeoptions )

    if "children" in nodes [ node ]:
        children = nodes [ node ][ "children" ]

        for child in children:
            name = create_children ( child, dir )

            label  = '<'
            label += '<table border="0" cellborder="0" cellspacing="0">'

            label += '<tr><td><IMG SRC="' + name + '"/></td></tr>'
            label += '</table>'
            label += '>'

            G.add_node ( str ( child ), label=label, **{ **nodeoptions, "shape": "none" } )
            G.add_edge ( str ( node ), str ( child ) )

    G.layout ()
    data = G.draw ( format="svg" )

    print ( "svg", node, data )

    name = os.path.join ( dir, str ( node ) + "_ret.svg" )

    with open ( name, "wb" ) as f:
        f.write ( data )
        f.close ()

    return name

Figure_1
Figure_1800×600 9.81 KB

2

Would rendering one large graph to a single SVG file solve your problem? Graphviz is capable of rendering a graph with multiple levels to a single SVG output file.

e.g. https://graphviz.org/Gallery/directed/bazel.html

3

Sorry this is happening.

As Mark says, it’s definitely simpler to render the graph in one shot.

Otherwise only way forward I can think of is to study the final SVG to understand the difference between that and what was desired, and if it can even be supported.

It’s reasonable to want general nested graphs, but Graphviz isn’t good at that.